ADU Company in Manhattan Beach, CA
Lodgewick ADU Builders helps Manhattan Beach homeowners add legal living space on lots where traditional construction rarely makes sense. In the Sand Section especially, those 30×90-foot walk-street parcels are already built out with three-story homes, which means most of our Manhattan Beach work involves garage conversions and JADUs rather than detached new builds. Coastal Zone permitting through the city’s Local Coastal Program adds a layer most inland contractors never touch. Call (254) 602-5618 for a written estimate before any work starts.
Why Manhattan Beach Homes Are Different
Manhattan Beach is really two housing markets. The Sand Section runs on 30×90-foot walk-street lots where post-1990s three-story custom rebuilds sit on 1950s-to-70s foundations, with detached garages reached through narrow rear alleys. Those garages are the most common ADU conversion target in the city, and they almost always need full foundation upgrades because the original slabs were poured as little more than parking pads. The Tree Section and Hill Section offer something closer to conventional: mid-century ranch homes on 50×150-foot-plus lots where site access and setbacks are more forgiving.
Then there’s the coastal layer. A large share of Manhattan Beach, including much of the Sand Section, sits inside California’s Coastal Zone. That means a Coastal Development Permit through the city’s certified Local Coastal Program, a step contractors in Torrance, Hawthorne, and Lawndale will never file. On top of that, the marine layer and salt air corrode standard hardware fast – exposed connectors and exterior metal that would last decades inland can show rust failure within a few years here. We spec stainless and coated fasteners on every Manhattan Beach project for that reason.
Our Main Manhattan Beach Services
Most Manhattan Beach calls land on three projects: converting a Sand Section garage into a legal accessory dwelling unit, adding square footage to a Tree or Hill Section home, or building a JADU within an existing footprint. Here’s what each looks like locally.
Home Addition Contractor in Manhattan Beach
In the Tree and Hill Sections, where lots stretch past 50 feet wide, a home addition is often the better play than a detached ADU. These are mid-century ranch homes with defined room layouts, so we typically work within the original envelope, add master suites or family rooms, and keep the roofline coherent with the 1960s-to-70s character. Salt air is less of a factor here than in the Sand Section, but we still spec corrosion-resistant flashing and hardware throughout. Home Addition Contractor in Manhattan Beach
Garage Conversion Contractor in Manhattan Beach
Garage conversions are the default ADU path in the Sand Section because there’s no room to build anything new. The challenge is that most of those detached garages sit on minimal slabs poured decades ago, and a legal conversion forces a full foundation upgrade before framing starts. Alley access adds coordination headaches – dumpsters and material deliveries have to thread through lanes barely 10 feet wide. We plan staging and sequencing around that from day one because it adds real cost and time and pretending otherwise does nobody any good. Garage Conversion Contractor in Manhattan Beach
ADU Builders in Manhattan Beach
A detached ADU in Manhattan Beach is rare for a reason: the Sand Section has no rear yards left, and most remaining parcels sit in the Coastal Zone, which triggers a Coastal Development Permit before you even submit building drawings. Where a detached unit does work – usually on a Tree or Hill Section lot – we handle the full permit path, from the city’s certified Local Coastal Program review through construction. For prefab options, we work with Abodu, Cover, and Dvele depending on lot shape and budget. ADU Builders in Manhattan Beach
What happens when you call
- 1
A real person answersNo phone trees - you reach a local pro.
- 2
You get an upfront price rangeHonest numbers before anyone is dispatched.
- 3
A background-checked tech heads outLicensed & insured, dispatched right away.
- 4
You approve before work beginsNothing starts until you say go.
Brands We Service in Manhattan Beach
We install and finish ADUs built with James Hardie siding, and we coordinate prefab deliveries from Abodu, Cover, and Dvele for Manhattan Beach lots where a factory-built shell makes sense. Lead times and warranty coverage vary by brand, so we match the right system to your site and your Coastal Zone permit path. Our brands page covers the details.
Pricing for ADU Company in Manhattan Beach, CA
| Service | Typical range in Manhattan Beach |
|---|---|
| Detached ADU (400 – 600 sq ft, new build) | $225,000 – $350,000+ |
| Garage conversion to ADU (with foundation upgrade) | $140,000 – $220,000 |
| JADU (conversion within existing home, under 500 sq ft) | $85,000 – $150,000 |
| Home addition (master suite or family room, 300 – 500 sq ft) | $150,000 – $275,000 |
| Coastal Development Permit coordination | $3,000 – $8,000 |
| Foundation upgrade for garage conversion | $25,000 – $55,000 |
| Alley staging and logistics premium (Sand Section) | $15,000 – $30,000 |
| Corrosion-resistant hardware and exterior finishes | $6,000 – $14,000 |
| Full plans and structural engineering (city submittal set) | $12,000 – $25,000 |
| Utility connection (water, sewer, electric separate meter) | $15,000 – $35,000 |
The two costs that surprise Manhattan Beach homeowners are the alley logistics premium in the Sand Section and the Coastal Development Permit coordination, neither of which shows up on a standard inland ADU quote. Every Lodgewick estimate is written before work begins, with the line items above broken out, and the number doesn’t change at the door.
Neighborhoods We Serve in Manhattan Beach
We work across all of Manhattan Beach’s sections, and the site conditions change block by block. Crews are typically able to schedule estimates within a few business days of your call.
- Sand Section (walk streets and alley-loaded garages)
- Tree Section (mid-century ranch homes on wider lots)
- Hill Section (larger parcels with canyon-side drainage)
- Manhattan Village (attached and smaller-lot homes)
- El Porto (northern beach-adjacent blocks)
Service Area – Cities Near Manhattan Beach
We also build ADUs, garage conversions, and home additions in the neighboring communities of Hermosa Beach, CA, El Segundo, CA, Lawndale, CA, and Hawthorne, CA. Each has its own building department and, for the beach cities, its own Coastal Zone rules, so we handle those paths separately per project.
Serving Manhattan Beach, CA - Our Local Coverage Area
We’re based in the Manhattan Beach area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs About ADU Company in Manhattan Beach
Yes, if your property falls within the city’s Coastal Zone, which includes much of the Sand Section. Manhattan Beach reviews these through its certified Local Coastal Program, so the permit path is city-level but follows coastal regulations. We handle the application, noticing, and submittal package as part of the project.
Estimates are scheduled within a few business days, and projects generally start once the city approves your permit set, which in Manhattan Beach can take three to eight months depending on Coastal Zone review. Call (254) 602-5618 to get a written quote and start the clock.
We do, and those are among the most involved jobs in Manhattan Beach. Material deliveries and dumpsters stage from the alley side because there’s no curbside access from the walk street, which adds coordination and cost. We plan that staging before the first truck arrives so the alley stays passable for your neighbors.
What happens when you call
- 1A real person answersNo phone trees - talk to a local adu pro.
- 2You get an upfront price rangeHonest numbers before anyone is dispatched. No surprises.
- 3We come out and measureLicensed & insured, at a time that suits you - the visit and the quote are both free.
- 4You get the price in writingLine-itemed, yours to keep, and nothing starts until you say go.
What Manhattan Beach Customers Say
"A whole backyard ADU from scratch. Terrified me going in, but they kept me updated weekly and there were no nasty surprises. Quality work and a fair price."
- Noreen Fletcher"Built a backyard unit for my mother in law. They handled the permits, gave me a real timeline, and stuck to it within a few days. The written price is what we paid, which anyone who's done construction knows is rare."
- Dennis Fairchild"Garage conversion into a studio for our teenager. Honest about what was realistic and what wasn't, finished close to schedule, and cleaned up the site daily."
- Marcus Beaumont